When I visit kbin.social, I see new posts regularly. On other servers posts stay on the frontpage for multiple days. This is also true if I switch their sorting to “hot”. So that is probably not the difference.
What is kbin.social doing differently?
I’ve seen it repeated here and there - most recently, here:
https://sh.itjust.works/post/116188
Edit: straight from GitHub: https://github.com/LemmyNet/lemmy/issues/3076